Truck structure for railway cars



Feb. 12, 1929.

E. W. WEBB TRUCK STRUCTURE FOR- RAILWAY CARS 2 Sheets-Sheet 1 Filed Nov. l2, 1925 m K n mwm V -T w fl mm w Z Feb. 12, 1929.,

E. W. WEBB TRUCK STRUCTURE FOR RAILWAY CARS Filed Nov. 12, 1925 2 Sheets-Sheet 2 [DWIN W'TWEBB. Q 5r HA9 firm/macs.

inn '5 ll "8 "1 Patents Fen. lira,

neurun stares PATENT OFFICE.

EDWIN W. WEBB, OF CHICAGO, ILLTNOIQ, AfzlSIGlNOR TO STANDARD CAB TRUCK COM- PANY, OF CHICAGO, ILLINOIS, A. COEFGRATION (3F HEW/V JERSEY.

TRUCK STRUCTURE FOR BAILEY/Al (JARS.

Application filed Novernluar 12, 1925. Serial No. @546.

This invention relates to a truck structure such as commonly used on railway cars and particularly to a novel structure and ar rangement of parts for supporting the ends of the bolsters which move between bolster columns of the side frame.

It is an object of this invention to provide a simple and efficient truck structure comprising a side frame having spaced bolster columns with a bottom connecting port-ion between which columns the end of the bolster projects, said bolster being carried on rollers on a roller plate or cap spring plate supported on springs which are supported at the lower ends by the connecting portion of the bolster column, the springs being arranged at one level.

It is a further object of the invention to provide such a structure as set forth in the preceding paragraph in which the upperends of the springs are substantially at one level and a cap spring plate or the plate for the roller seat is of simple flat form extended substantially in one plane between the bol ster column.

It is afurther object of the invention to provide a novel truck structure comprising a side frame having spaced bolster columns between which the end of the bolster is vertically movable, together with a plate forming the roller seat and vertically movable wear plates disposed between each column and the side of the bolster, which plates have their lower ends extending through openings in the roller bearing plate and provided with portions underlying said plate whereby said wear plates cannot lift relatively to the roller plate when in assembledposition.

It is also an object of the invention to provide anovel. truck structure comprising a side frame having spaced bolster columns which are of U-shape or channel-shape in horizontal cross section with their open sides disposed toward each other having a bottom connecting portion supporting a plurality of springs, the springs adjacent said bolster columns extending into the channel portions thereof. 1

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to the same parts throughout the different views, and in which 1 is a view in side elevation of a truck showing a portion of the side frame and parts assembled therein with some parts broken away;

Fig. 2 is a horizontal section taken substantially on the line 22 of Fig. 1, as indi cated by the arrows; i

Fig. 3 is, for most part, a vertical section taken substantially on the line 33 of Fig. 1;

Fig. i is a horizontal sect-ion taken on the line 4rd of Fig. 1';

Fig. 5 is a view in side elevation of the wear plate used; and

Fig. 6 is a view in edge elevation of said plate, as seen from the left of Fig. 5.

Referring to the drawings, a trucl structure is shown comprising a side frame havs mg spaced bolster columns 7 joined together at their lower ends by a connecting portion 7f and at their top ends by connecting portrons 7 The top member 7 is provided with a central groove or channel through which extends the compression member 8 in the form of a bar rectangular in cross section. The bar 8 is connected to the member 7 by a plurality of headed and nutted short bolts 13. The bottom portion 7* of the bolster column has a convex lower surface and lower corner portions with central grooves therein and a tension member or arch bar 9 of hammock shape contacts the bottom of the portion 7 and extends through the grooves in the said corner portions. The portion 7 has a downwardly extending central projection 7 projecting into a central recess 9 in the bar 9 to assist in holding the parts in proper position. The said corner portions have lugs 7 at the sides adapted to receive headed bolts 11 which project downwardly in adiagonal direction at each side of the member 9 and pass through holes in a connecting plate 10 clamped against the member 9 by the nuts 11. -The member 10 is connected to one end of abar 12 which extends outwardly to the bottom of the journal boxes, (not shown). The bolster columns 7 are of U-shape or channel shape in horizontal crosssection and have their open sides facing each other. At the upper portions of the columns, hearing or wearing surfaces 7 are provided. These wearing surfaces, as clearly shown in Fig. 2, are formed by a rectangular-shaped web projecting from the inner side of the channel of the column 7, the column at the wearing surfaces thus beingof box section; The bottom portion 7 of the bolster column has an annular lug or ring 7 projecting upwardly therefrom substantially. at. its central portion which is embraced by an opening in a'cha'nnel member 14: which extends between the side frames and over the portion?- and is held in place by lugs-7. A plate is supported on the bottom of channel member 14L also having an opening at its central portion surrounding the lug 7 and this plate 15 has projections at each end extending beyond the sides of channel member 14, and into the chann'eh shaped column 7, as shown in Figs. 1 and l.

j end, has laterally projecting ribslQ for lime The shape of this plate is clearly shown in Fig. 4 and it will be'seen that said end projections are somewhat curved at their outer ends with a straight outer edge. The sides of the channel member 14 are cut-away at their ends to accommodate the plate 15.

The plate 15 forms thebearing plate for a plurality of bolster supporting springs 16. While different numbers of these springs might. be used, in the en ibodiment of the 'invention illustrated, there are six springs for each side frame. Four of these springs are arranged in a square formation at the central part of the side frame, these four springs being disposed within the bearing surfaces 7 and the-other sprmgs are arranged at each end ofthis central group of four, the

end springs being partially disposed in the] channels of the bolster columns 7, as clearly shown in Figs. 1 and 4.

In the latter figure the position of the springs is indicated by the dotted line. lit

substantially in one plane resting on thetop of springs 16, said plate having downwardly pro ecting portions-17 at its inner and outer sides extendingdownward a short distance alongside oi the springs tor holding the same in position. The plate 17 is substantially rectangular at its central portion but has its ends converging and provided with rectangular projecting portions 17 which extend into the channels of the columns 7, as shown in Figs. 1 and 4;. The plate 17 is provided on its upper surface with a plurality of grooves 17 forming-seats for a plurality:

of bearing rollers 18. The bolster 19 of the truck has its end projecting between the bol ster'columns 7 and said bolsteris provided on its undersuri'ace with a plurality of roller seats 19 overlying the seats 17 and engaging the'rollers 18. V The bolster at its outer iting the endwise movement'thereot. Vertically movable. wear'pl-ates 20 are provided portions, which projections have alaterally extending lip or hook 20". The plate 17' has an aperture 17 at each end throughwhich the projection 2O extends, and when the wear plates 20 are in vertical operative position the lip orhook'20 extends laterally under the plate 17, thus preventing anyappreciable lifting of the wear plate 20, relative to the bearing plate 17. .The projection QO and hook 20 are inserted throu 'h the o .enin 23 b 7 with the wear plate in inclined. position and the plate is then brought toitsopera tive vertical position so that the partstake the position shown in the drawings.

From the above description it is'seen that applicant has provided a simple, efficient and compact structure of truck. By hav ng the column of channel shape disposed shown 7 and described, it is possible to get suflioient room for the numberof springs used and at the same. time to keep all of the springs at the same level. By having all of thesprings at the same level a straight bearing plate 17'can be used. Such a straight bearing plate is much cheaper and more easily made and superior to the oiiset bearing plate which has heretofore been proposed in connection with theme of six springs, some of whicl rwere at a higher elevation than the others. By having a straight bearing plate, a standard A. R. A. bolster can be used without material change, the only revision necessary being the provision of roller seats on the underside of the bolster which is now common practice. The spring bearing platelh and end springs, asabove described, are convenientlyreceived in the channels of the bolsters. The wear on the columns and bolsters is taken mostly on the wear plate 20 and these plates can be renewed when worn. The present structure ailfords a simple and efiicient manner of holding the plate QO'against vertical movement relatively to the spring plate 1". It will be seen that wear plate 20 rests on topot plate 17 and, as above stated, is held from appreciable vertical movement relatively thereto by the tongue 20 With the present structure, a large wearing iace tor the bolster and bolster column is also provided. All of the parts are constructed and arrangedto provide a simple,

compact. eflicient and durable truck.

It will, of course, be understood, that various changes may be made in the form, de-

tails, arrangement and proportions of the parts without departing from the scope of applicants invention, which, generally stated,

consists in adevice capable of carrying out the objects above set forth, in the novel parts and combinations of parts disclosed and dcfined in the appended claims.

What is clain'ied is:

1. A truck structure comprising a side frame having in C(Jll'lblilzltlOh, spaced bolster columns, a truck bolster having its end vertically movable between said columns, a spring cap plate also movable between said columns, a vertically movable wear plate between each column and said bolster, said Wear plate liaving a portion extending through said cap plate and underlying a portion of said plate whereby lifting of said Wear plate relatively to said cap plate is prevented.

2. A truck structure comprising a side frame having in combination, spaced bolster columns, a truck bolster having its end vertically movable between said columns, a spring cap plate also movable between said columns, a Wear plate disposed between each column and said bolster, said cap plate and Wear plate having interengaging means to prevent lifting of said Wear plate relatively to said cap plate.

In testimony whereof I al'lix my signature.

' EDWIN WV. WEBB. 

